6 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
10 * Advent Networks, Inc. <http://www.adventnetworks.com>
14 * Advent Networks, Inc. <http://www.adventnetworks.com>
17 * See file CREDITS for list of people who contributed to this
20 * This program is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU General Public License as
22 * published by the Free Software Foundation; either version 2 of
23 * the License, or (at your option) any later version.
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 * GNU General Public License for more details.
30 * You should have received a copy of the GNU General Public License
31 * along with this program; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
36 /*********************************************************************/
38 * This file contains the board configuartion for the GW8260 board.
43 * RESTRICTIONS/LIMITATIONS:
46 * Copyright (c) 2001, Advent Networks, Inc.
48 /*********************************************************************/
53 /* Enable debug prints */
54 #undef DEBUG /* General debug */
55 #undef DEBUG_BOOTP_EXT /* Debug received vendor fields */
57 /* What is the oscillator's (UX2) frequency in Hz? */
58 #define CONFIG_8260_CLKIN (66 * 1000 * 1000)
60 /*-----------------------------------------------------------------------
61 * MODCK_H & MODCLK[1-3] - Ref: Section 9.2 in MPC8206 User Manual
62 *-----------------------------------------------------------------------
63 * What should MODCK_H be? It is dependent on the oscillator
64 * frequency, MODCK[1-3], and desired CPM and core frequencies.
65 * Here are some example values (all frequencies are in MHz):
67 * MODCK_H MODCK[1-3] Osc CPM Core S2-6 S2-7 S2-8
68 * ------- ---------- --- --- ---- ----- ----- -----
69 * 0x5 0x5 66 133 133 Open Close Open
70 * 0x5 0x6 66 133 166 Open Open Close
71 * 0x5 0x7 66 133 200 Open Open Open
72 * 0x6 0x0 66 133 233 Close Close Close
73 * 0x6 0x1 66 133 266 Close Close Open
74 * 0x6 0x2 66 133 300 Close Open Close
76 #define CFG_SBC_MODCK_H 0x05
78 /* Define this if you want to boot from 0x00000100. If you don't define
79 * this, you will need to program the bootloader to 0xfff00000, and
80 * get the hardware reset config words at 0xfe000000. The simplest
81 * way to do that is to program the bootloader at both addresses.
82 * It is suggested that you just let U-Boot live at 0x00000000.
84 #define CFG_SBC_BOOT_LOW 1
86 /* What should the base address of the main FLASH be and how big is
87 * it (in MBytes)? This must contain TEXT_BASE from board/sbc8260/config.mk
88 * The main FLASH is whichever is connected to *CS0. U-Boot expects
89 * this to be the SIMM.
91 #define CFG_FLASH0_BASE 0x40000000
92 #define CFG_FLASH0_SIZE 8
94 /* Define CFG_FLASH_CHECKSUM to enable flash checksum during boot.
95 * Note: the 'flashchecksum' environment variable must also be set to 'y'.
97 #define CFG_FLASH_CHECKSUM
99 /* What should be the base address of SDRAM DIMM and how big is
102 #define CFG_SDRAM0_BASE 0x00000000
103 #define CFG_SDRAM0_SIZE 64
107 * CFG_DRAM_TEST - enables the following tests.
109 * CFG_DRAM_TEST_DATA - Enables test for shorted or open data lines
110 * Environment variable 'test_dram_data' must be
112 * CFG_DRAM_TEST_DATA - Enables test to verify that each word is uniquely
113 * addressable. Environment variable
114 * 'test_dram_address' must be set to 'y'.
115 * CFG_DRAM_TEST_WALK - Enables test a 64-bit walking ones pattern test.
116 * This test takes about 6 minutes to test 64 MB.
117 * Environment variable 'test_dram_walk' must be
120 #define CFG_DRAM_TEST
121 #if defined(CFG_DRAM_TEST)
122 #define CFG_DRAM_TEST_DATA
123 #define CFG_DRAM_TEST_ADDRESS
124 #define CFG_DRAM_TEST_WALK
125 #endif /* CFG_DRAM_TEST */
128 * GW8260 with 16 MB DIMM:
130 * 0x0000 0000 Exception Vector code, 8k
133 * 0x0000 2000 Free for Application Use
139 * 0x00F5 FF30 Monitor Stack (Growing downward)
140 * Monitor Stack Buffer (0x80)
141 * 0x00F5 FFB0 Board Info Data
142 * 0x00F6 0000 Malloc Arena
143 * : CFG_ENV_SECT_SIZE, 256k
144 * : CFG_MALLOC_LEN, 128k
145 * 0x00FC 0000 RAM Copy of Monitor Code
146 * : CFG_MONITOR_LEN, 256k
147 * 0x00FF FFFF [End of RAM], CFG_SDRAM_SIZE - 1
151 * GW8260 with 64 MB DIMM:
153 * 0x0000 0000 Exception Vector code, 8k
156 * 0x0000 2000 Free for Application Use
162 * 0x03F5 FF30 Monitor Stack (Growing downward)
163 * Monitor Stack Buffer (0x80)
164 * 0x03F5 FFB0 Board Info Data
165 * 0x03F6 0000 Malloc Arena
166 * : CFG_ENV_SECT_SIZE, 256k
167 * : CFG_MALLOC_LEN, 128k
168 * 0x03FC 0000 RAM Copy of Monitor Code
169 * : CFG_MONITOR_LEN, 256k
170 * 0x03FF FFFF [End of RAM], CFG_SDRAM_SIZE - 1
175 * select serial console configuration
177 * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then
178 * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4
181 * if CONFIG_CONS_NONE is defined, then the serial console routines must
184 #define CONFIG_CONS_ON_SMC 1 /* define if console on SMC */
185 #undef CONFIG_CONS_ON_SCC /* define if console on SCC */
186 #undef CONFIG_CONS_NONE /* define if console on neither */
187 #define CONFIG_CONS_INDEX 1 /* which SMC/SCC channel for console */
190 * select ethernet configuration
192 * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
193 * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
196 * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
197 * defined elsewhere (as for the console), or CONFIG_CMD_NET must be unset.
200 #undef CONFIG_ETHER_ON_SCC
201 #define CONFIG_ETHER_ON_FCC
202 #undef CONFIG_ETHER_NONE /* define if ethernet on neither */
204 #ifdef CONFIG_ETHER_ON_SCC
205 #define CONFIG_ETHER_INDEX 1 /* which SCC/FCC channel for ethernet */
206 #endif /* CONFIG_ETHER_ON_SCC */
208 #ifdef CONFIG_ETHER_ON_FCC
209 #define CONFIG_ETHER_INDEX 2 /* which SCC/FCC channel for ethernet */
210 #define CONFIG_MII /* MII PHY management */
211 #define CONFIG_BITBANGMII /* bit-bang MII PHY management */
213 * Port pins used for bit-banged MII communictions (if applicable).
215 #define MDIO_PORT 2 /* Port C */
216 #define MDIO_ACTIVE (iop->pdir |= 0x00400000)
217 #define MDIO_TRISTATE (iop->pdir &= ~0x00400000)
218 #define MDIO_READ ((iop->pdat & 0x00400000) != 0)
220 #define MDIO(bit) if(bit) iop->pdat |= 0x00400000; \
221 else iop->pdat &= ~0x00400000
223 #define MDC(bit) if(bit) iop->pdat |= 0x00200000; \
224 else iop->pdat &= ~0x00200000
226 #define MIIDELAY udelay(1)
227 #endif /* CONFIG_ETHER_ON_FCC */
229 #if defined(CONFIG_ETHER_ON_FCC) && (CONFIG_ETHER_INDEX == 2)
234 * - Select bus for bd/buffers (see 28-13)
235 * - Enable Full Duplex in FSMR
237 # define CFG_CMXFCR_MASK (CMXFCR_FC2|CMXFCR_RF2CS_MSK|CMXFCR_TF2CS_MSK)
238 # define CFG_CMXFCR_VALUE (CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14)
239 # define CFG_CPMFCR_RAMTYPE 0
240 # define CFG_FCC_PSMR (FCC_PSMR_FDE | FCC_PSMR_LPB)
242 #elif defined(CONFIG_ETHER_ON_FCC) && (CONFIG_ETHER_INDEX == 3)
247 * - Select bus for bd/buffers (see 28-13)
248 * - Enable Full Duplex in FSMR
250 # define CFG_CMXFCR_MASK (CMXFCR_FC3|CMXFCR_RF3CS_MSK|CMXFCR_TF3CS_MSK)
251 # define CFG_CMXFCR_VALUE (CMXFCR_RF3CS_CLK15|CMXFCR_TF3CS_CLK16)
252 # define CFG_CPMFCR_RAMTYPE 0
253 # define CFG_FCC_PSMR (FCC_PSMR_FDE | FCC_PSMR_LPB)
255 #endif /* CONFIG_ETHER_ON_FCC, CONFIG_ETHER_INDEX */
257 /* Define this to reserve an entire FLASH sector (256 KB) for
258 * environment variables. Otherwise, the environment will be
259 * put in the same sector as U-Boot, and changing variables
260 * will erase U-Boot temporarily
262 #define CFG_ENV_IN_OWN_SECT
264 /* Define to allow the user to overwrite serial and ethaddr */
265 #define CONFIG_ENV_OVERWRITE
267 /* What should the console's baud rate be? */
268 #define CONFIG_BAUDRATE 115200
270 /* Ethernet MAC address - This is set to all zeros to force an
271 * an error if we use BOOTP without setting
274 #define CONFIG_ETHADDR 00:00:00:00:00:00
276 /* Set to a positive value to delay for running BOOTCOMMAND */
277 #define CONFIG_BOOTDELAY 5 /* autoboot after 5 seconds */
279 /* Be selective on what keys can delay or stop the autoboot process
282 #define CONFIG_AUTOBOOT_KEYED
283 #define CONFIG_AUTOBOOT_PROMPT "Autobooting in %d seconds, press \" \" to stop\n"
284 #define CONFIG_AUTOBOOT_STOP_STR " "
285 #undef CONFIG_AUTOBOOT_DELAY_STR
286 #define DEBUG_BOOTKEYS 0
288 /* Add support for a few extra bootp options like:
292 #define CONFIG_BOOTP_MASK (CONFIG_BOOTP_DEFAULT | \
293 CONFIG_BOOTP_BOOTFILESIZE | \
296 /* undef this to save memory */
299 /* Monitor Command Prompt */
300 #define CFG_PROMPT "=> "
304 * Command line configuration.
306 #include <config_cmd_default.h>
308 #define CONFIG_CMD_BEDBUG
309 #define CONFIG_CMD_ELF
310 #define CONFIG_CMD_ASKENV
311 #define CONFIG_CMD_REGINFO
312 #define CONFIG_CMD_IMMAP
313 #define CONFIG_CMD_MII
315 #undef CONFIG_CMD_KGDB
318 /* Where do the internal registers live? */
319 #define CFG_IMMR 0xf0000000
321 /* Use the HUSH parser */
322 #define CFG_HUSH_PARSER
323 #ifdef CFG_HUSH_PARSER
324 #define CFG_PROMPT_HUSH_PS2 "> "
327 /* What is the address of IO controller */
328 #define CFG_IO_BASE 0xe0000000
330 /*****************************************************************************
332 * You should not have to modify any of the following settings
334 *****************************************************************************/
336 #define CONFIG_MPC8260 1 /* This is an MPC8260 CPU */
337 #define CONFIG_GW8260 1 /* on an GW8260 Board */
338 #define CONFIG_CPM2 1 /* Has a CPM2 */
341 * Miscellaneous configurable options
343 #if defined(CONFIG_CMD_KGDB)
344 # define CFG_CBSIZE 1024 /* Console I/O Buffer Size */
346 # define CFG_CBSIZE 256 /* Console I/O Buffer Size */
349 /* Print Buffer Size */
350 #define CFG_PBSIZE (CFG_CBSIZE + sizeof(CFG_PROMPT)+16)
352 #define CFG_MAXARGS 8 /* max number of command args */
354 #define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */
356 /* Convert clocks to MHZ when passing board info to kernel.
357 * This must be defined for eariler 2.4 kernels (~2.4.4).
359 #define CONFIG_CLOCKS_IN_MHZ
361 #define CFG_LOAD_ADDR 0x100000 /* default load address */
362 #define CFG_HZ 1000 /* decrementer freq: 1 ms ticks */
365 /* memtest works from the end of the exception vector table
366 * to the end of the DRAM less monitor and malloc area
368 #define CFG_MEMTEST_START 0x2000
370 #define CFG_STACK_USAGE 0x10000 /* Reserve 64k for the stack usage */
372 #define CFG_MEM_END_USAGE ( CFG_MONITOR_LEN \
374 + CFG_ENV_SECT_SIZE \
377 #define CFG_MEMTEST_END ( CFG_SDRAM_SIZE * 1024 * 1024 \
378 - CFG_MEM_END_USAGE )
380 /* valid baudrates */
381 #define CFG_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
384 * Low Level Configuration Settings
385 * (address mappings, register initial values, etc.)
386 * You should know what you are doing if you make changes here.
389 #define CFG_FLASH_BASE CFG_FLASH0_BASE
390 #define CFG_FLASH_SIZE CFG_FLASH0_SIZE
391 #define CFG_SDRAM_BASE CFG_SDRAM0_BASE
392 #define CFG_SDRAM_SIZE CFG_SDRAM0_SIZE
394 /*-----------------------------------------------------------------------
395 * Hard Reset Configuration Words
397 #if defined(CFG_SBC_BOOT_LOW)
398 # define CFG_SBC_HRCW_BOOT_FLAGS (HRCW_CIP | HRCW_BMS)
400 # define CFG_SBC_HRCW_BOOT_FLAGS (0)
401 #endif /* defined(CFG_SBC_BOOT_LOW) */
403 /* get the HRCW ISB field from CFG_IMMR */
404 #define CFG_SBC_HRCW_IMMR ( ((CFG_IMMR & 0x10000000) >> 10) | \
405 ((CFG_IMMR & 0x01000000) >> 7) | \
406 ((CFG_IMMR & 0x00100000) >> 4) )
408 #define CFG_HRCW_MASTER ( HRCW_BPS11 | \
410 CFG_SBC_HRCW_IMMR | \
415 (CFG_SBC_MODCK_H & HRCW_MODCK_H1111) | \
416 CFG_SBC_HRCW_BOOT_FLAGS )
419 #define CFG_HRCW_SLAVE1 0
420 #define CFG_HRCW_SLAVE2 0
421 #define CFG_HRCW_SLAVE3 0
422 #define CFG_HRCW_SLAVE4 0
423 #define CFG_HRCW_SLAVE5 0
424 #define CFG_HRCW_SLAVE6 0
425 #define CFG_HRCW_SLAVE7 0
427 /*-----------------------------------------------------------------------
428 * Definitions for initial stack pointer and data area (in DPRAM)
430 #define CFG_INIT_RAM_ADDR CFG_IMMR
431 #define CFG_INIT_RAM_END 0x4000 /* End of used area in DPRAM */
432 #define CFG_GBL_DATA_SIZE 128 /* bytes reserved for initial data */
433 #define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
434 #define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET
436 /*-----------------------------------------------------------------------
437 * Start addresses for the final memory configuration
438 * (Set up by the startup code)
439 * Please note that CFG_SDRAM_BASE _must_ start at 0
440 * Note also that the logic that sets CFG_RAMBOOT is platform dependent.
442 #define CFG_MONITOR_BASE CFG_FLASH0_BASE
444 #define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Monitor */
445 #define CFG_MALLOC_LEN (128 * 1024) /* Reserve 128 kB for malloc() */
448 * For booting Linux, the board info and command line data
449 * have to be in the first 8 MB of memory, since this is
450 * the maximum mapped by the Linux kernel during initialization.
452 #define CFG_BOOTMAPSZ (8 * 1024 * 1024) /* Initial Memory map for Linux */
454 /*-----------------------------------------------------------------------
455 * FLASH and environment organization
457 #define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */
458 #define CFG_MAX_FLASH_SECT 32 /* max number of sectors on one chip */
460 #define CFG_FLASH_ERASE_TOUT 8000 /* Timeout for Flash Erase (in ms) */
461 #define CFG_FLASH_WRITE_TOUT 1 /* Timeout for Flash Write (in ms) */
463 #define CFG_ENV_IS_IN_FLASH 1
465 #ifdef CFG_ENV_IN_OWN_SECT
466 # define CFG_ENV_ADDR (CFG_MONITOR_BASE + (256 * 1024))
467 # define CFG_ENV_SECT_SIZE (256 * 1024)
469 # define CFG_ENV_SIZE (16 * 1024)/* Size of Environment Sector */
470 # define CFG_ENV_ADD ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) - CFG_ENV_SIZE)
471 # define CFG_ENV_SECT_SIZE (256 * 1024)/* see README - env sect real size */
472 #endif /* CFG_ENV_IN_OWN_SECT */
474 /*-----------------------------------------------------------------------
475 * Cache Configuration
477 #define CFG_CACHELINE_SIZE 32 /* For MPC8260 CPU */
479 #if defined(CONFIG_CMD_KGDB)
480 # define CFG_CACHELINE_SHIFT 5 /* log base 2 of the above value */
483 /*-----------------------------------------------------------------------
484 * HIDx - Hardware Implementation-dependent Registers 2-11
485 *-----------------------------------------------------------------------
486 * HID0 also contains cache control - initially enable both caches and
487 * invalidate contents, then the final state leaves only the instruction
488 * cache enabled. Note that Power-On and Hard reset invalidate the caches,
489 * but Soft reset does not.
491 * HID1 has only read-only information - nothing to set.
493 #define CFG_HID0_INIT (HID0_ICE |\
500 #define CFG_HID0_FINAL (HID0_ICE |\
506 /*-----------------------------------------------------------------------
507 * RMR - Reset Mode Register
508 *-----------------------------------------------------------------------
512 /*-----------------------------------------------------------------------
513 * BCR - Bus Configuration 4-25
514 *-----------------------------------------------------------------------
516 #define CFG_BCR (BCR_ETM)
518 /*-----------------------------------------------------------------------
519 * SIUMCR - SIU Module Configuration 4-31
520 *-----------------------------------------------------------------------
522 #define CFG_SIUMCR (SIUMCR_DPPC11 |\
528 /*-----------------------------------------------------------------------
529 * SYPCR - System Protection Control 11-9
530 * SYPCR can only be written once after reset!
531 *-----------------------------------------------------------------------
532 * Watchdog & Bus Monitor Timer max, 60x Bus Monitor enable
534 #define CFG_SYPCR (SYPCR_SWTC |\
541 /*-----------------------------------------------------------------------
542 * TMCNTSC - Time Counter Status and Control 4-40
543 *-----------------------------------------------------------------------
544 * Clear once per Second and Alarm Interrupt Status, Set 32KHz timersclk,
545 * and enable Time Counter
547 #define CFG_TMCNTSC (TMCNTSC_SEC |\
552 /*-----------------------------------------------------------------------
553 * PISCR - Periodic Interrupt Status and Control 4-42
554 *-----------------------------------------------------------------------
555 * Clear Periodic Interrupt Status, Set 32KHz timersclk, and enable
558 #define CFG_PISCR (PISCR_PS |\
562 /*-----------------------------------------------------------------------
563 * SCCR - System Clock Control 9-8
564 *-----------------------------------------------------------------------
568 /*-----------------------------------------------------------------------
569 * RCCR - RISC Controller Configuration 13-7
570 *-----------------------------------------------------------------------
575 * Initialize Memory Controller:
577 * Bank Bus Machine PortSz Device
578 * ---- --- ------- ------ ------
579 * 0 60x GPCM 32 bit FLASH (SIMM - 4MB)
580 * 1 60x GPCM 32 bit unused
581 * 2 60x SDRAM 64 bit SDRAM (DIMM - 16MB or 64MB)
582 * 3 60x SDRAM 64 bit unused
583 * 4 Local GPCM 8 bit IO (on board - 64k)
584 * 5 60x GPCM 8 bit unused
585 * 6 60x GPCM 8 bit unused
586 * 7 60x GPCM 8 bit unused
590 /*-----------------------------------------------------------------------
591 * BR0 - Base Register
592 * Ref: Section 10.3.1 on page 10-14
593 * OR0 - Option Register
594 * Ref: Section 10.3.2 on page 10-18
595 *-----------------------------------------------------------------------
598 /* Bank 0,1 - FLASH SIMM
600 * This expects the FLASH SIMM to be connected to *CS0
601 * It consists of 4 AM29F016D parts.
603 * Note: For the 8 MB SIMM, *CS1 is unused.
606 /* BR0 is configured as follows:
608 * - Base address of 0x40000000
610 * - Data errors checking is disabled
611 * - Read and write access
613 * - Access are handled by the memory controller according to MSEL
614 * - Not used for atomic operations
615 * - No data pipelining is done
618 #define CFG_BR0_PRELIM ((CFG_FLASH0_BASE & BRx_BA_MSK) |\
623 /* OR0 is configured as follows:
626 * - *BCTL0 is asserted upon access to the current memory bank
627 * - *CW / *WE are negated a quarter of a clock earlier
628 * - *CS is output at the same time as the address lines
629 * - Uses a clock cycle length of 5
630 * - *PSDVAL is generated internally by the memory controller
631 * unless *GTA is asserted earlier externally.
632 * - Relaxed timing is generated by the GPCM for accesses
633 * initiated to this memory region.
634 * - One idle clock is inserted between a read access from the
635 * current bank and the next access.
637 #define CFG_OR0_PRELIM (MEG_TO_AM(CFG_FLASH0_SIZE) |\
644 /*-----------------------------------------------------------------------
645 * BR2 - Base Register
646 * Ref: Section 10.3.1 on page 10-14
647 * OR2 - Option Register
648 * Ref: Section 10.3.2 on page 10-16
649 *-----------------------------------------------------------------------
652 /* Bank 2 - SDRAM DIMM
655 * 64MB DIMM: P/N 1W-8864X8-4-P1-EST or
656 * MT4LSDT864AG-10EB1 (Micron)
658 * Note: *CS3 is unused for this DIMM
661 /* With a 16 MB or 64 MB DIMM, the BR2 is configured as follows:
663 * - Base address of 0x00000000
664 * - 64 bit port size (60x bus only)
665 * - Data errors checking is disabled
666 * - Read and write access
668 * - Access are handled by the memory controller according to MSEL
669 * - Not used for atomic operations
670 * - No data pipelining is done
673 #define CFG_BR2_PRELIM ((CFG_SDRAM0_BASE & BRx_BA_MSK) |\
678 /* With a 16 MB DIMM, the OR2 is configured as follows:
681 * - 2 internal banks per device
682 * - Row start address bit is A9 with PSDMR[PBI] = 0
683 * - 11 row address lines
684 * - Back-to-back page mode
685 * - Internal bank interleaving within save device enabled
687 #if (CFG_SDRAM0_SIZE == 16)
688 #define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM0_SIZE) |\
690 ORxS_ROWST_PBI0_A9 |\
693 /* With a 16 MB DIMM, the PSDMR is configured as follows:
695 * - Page Based Interleaving,
697 * - Address Multiplexing where A5 is output on A14 pin
698 * (A6 on A15, and so on),
699 * - use address pins A16-A18 as bank select,
700 * - A9 is output on SDA10 during an ACTIVATE command,
701 * - earliest timing for ACTIVATE command after REFRESH command is 7 clocks,
702 * - earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
704 * - earliest timing for READ/WRITE command after ACTIVATE command is
706 * - earliest timing for PRECHARGE after last data was read is 1 clock,
707 * - earliest timing for PRECHARGE after last data was written is 1 clock,
708 * - CAS Latency is 2.
711 /*-----------------------------------------------------------------------
712 * PSDMR - 60x Bus SDRAM Mode Register
713 * Ref: Section 10.3.3 on page 10-21
714 *-----------------------------------------------------------------------
716 #define CFG_PSDMR (PSDMR_RFEN |\
717 PSDMR_SDAM_A14_IS_A5 |\
718 PSDMR_BSMA_A16_A18 |\
719 PSDMR_SDA10_PBI0_A9 |\
726 #endif /* (CFG_SDRAM0_SIZE == 16) */
728 /* With a 64 MB DIMM, the OR2 is configured as follows:
731 * - 4 internal banks per device
732 * - Row start address bit is A8 with PSDMR[PBI] = 0
733 * - 12 row address lines
734 * - Back-to-back page mode
735 * - Internal bank interleaving within save device enabled
737 #if (CFG_SDRAM0_SIZE == 64)
738 #define CFG_OR2_PRELIM (MEG_TO_AM(CFG_SDRAM0_SIZE) |\
740 ORxS_ROWST_PBI0_A8 |\
743 /* With a 64 MB DIMM, the PSDMR is configured as follows:
745 * - Page Based Interleaving,
747 * - Address Multiplexing where A5 is output on A14 pin
748 * (A6 on A15, and so on),
749 * - use address pins A14-A16 as bank select,
750 * - A9 is output on SDA10 during an ACTIVATE command,
751 * - earliest timing for ACTIVATE command after REFRESH command is 7 clocks,
752 * - earliest timing for ACTIVATE or REFRESH command after PRECHARGE command
754 * - earliest timing for READ/WRITE command after ACTIVATE command is
756 * - earliest timing for PRECHARGE after last data was read is 1 clock,
757 * - earliest timing for PRECHARGE after last data was written is 1 clock,
758 * - CAS Latency is 2.
761 /*-----------------------------------------------------------------------
762 * PSDMR - 60x Bus SDRAM Mode Register
763 * Ref: Section 10.3.3 on page 10-21
764 *-----------------------------------------------------------------------
766 #define CFG_PSDMR (PSDMR_RFEN |\
767 PSDMR_SDAM_A14_IS_A5 |\
768 PSDMR_BSMA_A14_A16 |\
769 PSDMR_SDA10_PBI0_A9 |\
776 #endif /* (CFG_SDRAM0_SIZE == 64) */
778 #define CFG_PSRT 0x0e
779 #define CFG_MPTPR MPTPR_PTP_DIV32
782 /*-----------------------------------------------------------------------
783 * BR4 - Base Register
784 * Ref: Section 10.3.1 on page 10-14
785 * OR4 - Option Register
786 * Ref: Section 10.3.2 on page 10-18
787 *-----------------------------------------------------------------------
789 /* Bank 4 - Onboard Memory Mapped IO controller
791 * This expects the onboard IO controller to connected to *CS4 and
793 * - Base address of 0xe0000000
794 * - 8 bit port size (local bus only)
795 * - Read and write access
797 * - Not used for atomic operations
798 * - No data pipelining is done
800 * - extended hold time
805 # define CFG_BR4_PRELIM ((CFG_IO_BASE & BRx_BA_MSK) |\
810 # define CFG_OR4_PRELIM (ORxG_AM_MSK |\
813 #endif /* CFG_IO_BASE */
816 * Internal Definitions
820 #define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */
821 #define BOOTFLAG_WARM 0x02 /* Software reboot */
823 #endif /* __CONFIG_H */